/// <summary>
/// Code Executed When Button Search is Clicked
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void SearchButton_Click(object sender, EventArgs e)
{
textBoxResult.Text = ""; // Set Initially textBoxResult as Empty
labelCount.Text = ""; // Set Initially labelCount as Empty
// Get City details from the textbox named textboxCity
string cityName = textboxCity.Text;
// Regular Expression for special character
Regex specialCharacterRegex = new Regex(@"[~`!@#$%^&*()+=|\\{}':;.,<>/?[\]""_-]");
int _result; // variable to hold int value returned by TryParse
// Display Error in case of not provided city name or numbers provided
if (cityName.Length == 0 || int.TryParse(cityName, out _result))
{
labelError.Visible = true;
labelError.Text = Errors.InvalidCityInputError;
pictureBoxLocation.Visible = true;
labelResult.Visible = false;
textBoxResult.Visible = false;
}
// To check occurence of any special character by matching it with Regular
// Expression defined by specialCharacterRegex
else if (specialCharacterRegex.IsMatch(cityName))
{
labelError.Visible = true;
labelError.Text = Errors.SpecialCharacterError;
pictureBoxLocation.Visible = true;
labelResult.Visible = false;
textBoxResult.Visible = false;
}
// Fetch the Companies Details and display it
else
{
int _countCompanyName = 0;
string formattedCityName = string.Empty; // string to format the provided city name in reuired url
string[] cityInfo = cityName.Split(' ');
// format the provided city name to their respective url
foreach (string word in cityInfo)
{
formattedCityName += word + "+";
}
_baseUrl = GetBaseUrl(formattedCityName);
// calling method with city name as passed parameter
GetCompaniesInXml(_baseUrl);
// Getting all the IT Companies name with tag 'name' in XML file to XmlNodeList object
XmlNodeList nodeListName = _xmlDoc.GetElementsByTagName("name");
// Getting all the IT Companies address with tag 'formatted_address' in XML file to XmlNodeList object
XmlNodeList nodeListAddress = _xmlDoc.GetElementsByTagName("formatted_address");
// Count IT Companies for provided Location
_countCompanyName = nodeListName.Count;
// Getting token name for returned result
_nodeListToken = _xmlDoc.GetElementsByTagName("next_page_token");
// Append _pageTokenList with latest token
foreach (XmlNode xn in _nodeListToken)
{
_pageTokenList.Add(_nodeListToken[0].InnerText);
}
// nextButton method will not be called in case of no token available
if (_pageTokenList.Count > 0)
{
buttonNext.Visible = true;
}
// Create object for all the available IT Company
CompanyDetails[] company = new CompanyDetails[_countCompanyName];
// Set name and address for each company in CompanyDetails object
for (int i = 0; i < _countCompanyName; i++)
{
company[i] = new CompanyDetails();
company[i].set_Name(nodeListName[i].InnerText);
company[i].set_Address(nodeListAddress[i].InnerText);
}
// Dispaly Error in case of no returned Company Name
if (_countCompanyName == 0)
{
labelError.Visible = true;
labelError.Text = Errors.InvalidCityNameError;
pictureBoxLocation.Visible = true;
labelResult.Visible = false;
textBoxResult.Visible = false;
}
// Append Each Object to textBoxResult
else
{
for (int i = 0; i < _countCompanyName; i++)
{
labelError.Visible = false;
pictureBoxLocation.Visible = false;
labelResult.Visible = true;
textBoxResult.Visible = true;
// Appending textBoxResult with CompanyDetails Object by calling toString() method for each object
textBoxResult.Text += company[i] + "\r\n-------------------------------------------------------------\r\n";
}
// Display the number of IT Companies on label named labelCount
labelCount.Visible = true;
labelCount.Text = _countCompanyName.ToString();
}
}
}
private void buttonNext_Click(object sender, EventArgs e)
{
textBoxResult.Text = ""; // Set Initially textBoxResult as Empty
labelCount.Text = ""; // Set Initially labelCount as Empty
// Get City details from the textbox named textboxCity
string cityName = textboxCity.Text;
int _countCompanyName = 0;
string formattedCityName = string.Empty; // string to format the provided city name in reuired url
string[] cityInfo = cityName.Split(' ');
// format the provided city name to their respective url
foreach (string word in cityInfo)
{
formattedCityName += word + "+";
}
int countPageToken = _pageTokenList.Count;
_baseUrl = GetBaseUrl(formattedCityName, _pageTokenList[countPageToken - 1]);
// calling method with city name as passed parameter
GetCompaniesInXml(_baseUrl);
// Getting all the IT Companies name with tag 'name' in XML file to XmlNodeList object
XmlNodeList nodeListName = _xmlDoc.GetElementsByTagName("name");
// Getting all the IT Companies address with tag 'formatted_address' in XML file to XmlNodeList object
XmlNodeList nodeListAddress = _xmlDoc.GetElementsByTagName("formatted_address");
// Getting token name for returned result
_nodeListToken = _xmlDoc.GetElementsByTagName("next_page_token");
// In case of no token available, it will disable the next button
if (_nodeListToken.Count == 0)
{
buttonNext.Visible = true;
}
// Append _pageTokenList with latest token
foreach (XmlNode xn in _nodeListToken)
{
_pageTokenList.Add(_nodeListToken[0].InnerText);
}
// Count IT Companies for provided Location
_countCompanyName = nodeListName.Count;
// Create object for all the available IT Company
CompanyDetails[] company = new CompanyDetails[_countCompanyName];
// Set name and address for each company in CompanyDetails object
for (int i = 0; i < _countCompanyName; i++)
{
company[i] = new CompanyDetails();
company[i].set_Name(nodeListName[i].InnerText);
company[i].set_Address(nodeListAddress[i].InnerText);
}
// Dispaly Error in case of no returned Company Name
if (_countCompanyName == 0)
{
labelError.Visible = true;
labelError.Text = Errors.InvalidCityNameError;
pictureBoxLocation.Visible = true;
labelResult.Visible = false;
textBoxResult.Visible = false;
}
// Append Each Object to textBoxResult
else
{
for (int i = 0; i < _countCompanyName; i++)
{
labelError.Visible = false;
pictureBoxLocation.Visible = false;
labelResult.Visible = true;
textBoxResult.Visible = true;
// Appending textBoxResult with CompanyDetails Object by calling toString() method for each object
textBoxResult.Text += company[i] + "\r\n-------------------------------------------------------------\r\n";
}
// Display the number of IT Companies on label named labelCount
labelCount.Visible = true;
labelCount.Text = _countCompanyName.ToString();
}
}
